Wrapping machine



Oct- 6,1925- 1,556,187

H. WATERSTONE wRAPPINq- MACHINE Filed July 24, 1922 5 Sheets-Sheet l Zlnqquhw 7 8 2 z m a m e 1 5 m w Q. n t b 1 w 3 v e p m S t 4L .N m m 1. w m m u. 1 E G y J v w n w .m H m Q NQN M UNE El. I mm mfiwmlm lg gl W0 9 \Q \m N$ 6 E\ V L Y. m u 9n. MN

N MN H. WATERSTONE WRAPPING MACHINE Filed July 24, 1922 5 Sheets-Sheet 3 91 3 wter stone i& I

K flttozneq Patented Oct. 6, 1925.

UNITED STATES,

PATENT OFFICE.

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Application filed July 24, 192:. Serial No. 577,122.

Figure '3 is a longitudinal section on the To all whom it may 00mm."

Be it known that I, HENRY WATERSTONE,

a citizen of the United States, residing at Montgomery, in the county .of Fayette and State of West Virginia,- have invented certain new and useful Im rovements in Wrapping Machines, of whlch the following is a specification.

This invention relates to wrapping machines for wrapping up. articles of various sorts and has specialreference to a wra ping machine particularly adapted for t e wrapping of bread, cakes and other similar articles of loaf like form. x One important object of the invention is to improve and. simplify the general constructlon of devices of this character.

A second important objectof the invention is to provide an improved breadiwrapping machine wherein the loaf will be automatlcally conveyed tothe wrapping mechanism through a step by step movement,

elevated forengagement by said wra pin mechanism, wrapped, sealed and de were I to a delivery conveyor without the intervention of the hands. v

' A third important object of the invention is "to provide an improved paper feeding mechanism.

A fourth important object of the invention is to provide, in a machine of this character, an improved means for successively wrapping one side and the bottom of "anarticle and tucking the ends of the wrapper in. v

A fifth important object of the invention is to provide an improved means for moving the loaf or other article into engagement with wrapping-devices to furnish the wraping and at the same time to release the loaf or aoti n by the conveyor.

Withthe above and other objects 1n view, the invention consists in general ofcertain novel details of construction and combinations of illustrate and s ecifically claimed.

(partshereinafter fully described,

In t e accompanylng drawings, llke char-- actors of reference indicate like parts in the several views,-and':"- g 1 Figure 1 is-a side elevation of the complete machine.

v Figure 2 .is with inor er to disclose :on a larger scale the remainder of the machine.

a plan view' of the machine feeding mechanism.

in. the accompanying drawings,

ortions of theconveyor broken away line 33 of Figure M Figure 4 is a transverse sect'on on the line H of Figure 2. p

Figure 5 is a detail'view of a portion of the paper feeding mechanism." L Figure 6 is a detail view of a rtion of a certain conveyor actuating mec anism.

Figure 7 is a detail of a Fi re 8 is 'a view showingthe bread in .posit10n, for the wrappingoperation.

portion of the In the embodiment of the invention herein illustrated the same has been disclosed as adapted for the wrapping 'ofthe loaves of bread of various sizes but it is to be understood that the use of this machine is not confined to bread wrapping but it may be utilized for the wrapping of various other articles having the general form of a bread loaf. This invention is mountedon a main.

bed or frame 10 which is preferably cast. as

a innit and projecting from one side of this frame is a pair of arms-11 supporting the paper feeding mechanism. At the outer end of these arms there are formed sultable bearings to receive the endsof ashaft12 having paper roll. supports 13 located thereon and movable toflaccommodate paper of different widths. The ends of the shaft 12 are held in position by means of bearing caps 14 which are attached at one end pivotally to the arms asat-15. The other end of each ofthese caps. is slotted to receive a holding down bolt 16 h ving a nut 17 i thereon between which an the cap is arranged a coil spring 18. In spaced relation to-the shaft 12 there is journalled inthearms 11' a feeder shaft 19 and above the bearings for thisfshaft are slots 20 whereinam slidably mounted bearings 21' supporting a presser roll 22, these bearings being normally forced downward by means of a plunger 23 passon the paper.

the

ing through a cap 24. secured to the arm 11 at each end of said shaft. By this means when the feed roll or shaft 19 is rotated aper will be fed forward so long as the earings 21 are forced downward. In order to raise these bearings and stop the feeding of the paper there is provided at the top of each of the plungers an eye or loop 25 and through these eyes passes a lift bar 26 pivotally connected at each of its ends to an angularly lift link 27. On one of the links 27 is ahandle 28. As shown in F ig ure 1, movement of the handle 28 toward the right of that figure'will'cause lifting of the bar 26, consequently releasing the pressure In order'to actuate the feed roll 19 there is provided on one end of its shaft a bevel gear 29 wherewith meshes a bevel gear 30 fixed on a shaft 31 extending at right angles to the feed roll. On this shaft 31 is fixed a ratchet 32, and rotatable on the feed shaft adjacent said ratchet is a gear wheel 33 carrying pawls 34 which engage with vthe ratchet. Meshing with the gear 33 is a rack bar 35 which'is slidable longitudinally of the machine and is connected by a ,link or connecting rod 36 with a" crank disc 37 fixed on the main shaft 38 of themachine. This main shaft 38 has a worm wheel 39 fixed thereon and meshing with this worm wheel is a worm 40 which is fixedon'a driving shaft 41 provided with a belt pulley 42 where throughpower is. transmitted to the machine. The .paper from the feed rolls passes over a platform 43 and onto a pair of spaced platforms 44.

Between theplatform 43 and the s aced platforms 44 is fixed a knife bla e 45 mounted on the frame 10 and coacting with this knife blade is a movable knife blade 46 which is swingingly mounted on the frame at. the ends of pivoted arms 47. At

the drivingend of the machine this movable knife blade is' connected b a link 48 with a lever 49 pivoted intermediat its ends and operated by means of a cam50 fixed on the shaft 38 and bearing on a roller 51 carried by said lever 49. A spring 52, holds this lever' in rcontact with said cam.

At 53 is a conveyor support and this support may be located at an desired distance from the machine proper. arried by the support 53' is a conveyor roll 54 and journalled in the frame 10 is a second conveyor roll 55, the two rolls being connected by a belt 3 56. On the upper side of the conveyor the belt runs over alatform 57 between-laterally adjustable si e beds 58 so that different sizes of'loaves can be accommodated. The roll is fixed on a shaft 59 and this shaft 59 has fixed thereon a ratchet wheel 60 admeant to which is a gear wheel 61 carrying a disc 62 supporting'pawls 63 coacting with; the ratchet 60. Engagin the ear 61 is a rack 64 which is connecte by a 'nk or coni necting rod 65 with a crank disc 66 fixed on the shaft 38. Thus, the "rotation of the crankrdisc imparts a step bystep movement to the conveyor. l

At 67 is a plunger mounted in guides 68 and carrying on its upper end an elevator table 69. This plunger is actuated by means of a lever 70 slotted as at 71 to engagea pin 72 on the plunger. The lever 70 is pivoted carriage 78 is connected by a link 81 with a lever 82 pivoted on .the shaft 83 and having its lower end connected by a' late 84, slotted to engage the shaft 38, w1th a cam 85. Above the carriage 78 are provided trip cams 86 engageable by rollers 87 on arms 88 extendin upward from the pivot folder 80. As the bread is lifted by the elevator between the platforms 44 the paper is carried on top of the bread and the loaf passes between the folders 79 and 80 which are ad- 'justed for the size by means of screws 89 and slots 90 so that the sides .of the paper are folded down as shown in Figure 9. Slidably mounted on the frame 10 is a carriage.

91 supporting the end tuckers 92 and this carriage is reciprocated by a link 93 connected to the upper end of a lever 94 pivoted on the shaft or rod83 and having its lower end connected to the blade 95 of an eccentric 96 fixed on the shaft 38. Slidably mounted on the carriage 91 is a bottom folder plate 97 which is connected b a link 98 with a lever 99 pivoted on the S aft 83 and-having .its lower end connected to the blade 100 of 'an eccentric 101. ,At the conveyor end of the machine there is a platform 102 having an opening 102* and whereon are supported end folding members or brackets adjustable t9 and from each-other by slots 104 and bolts 105 formed in their supporting brackets.

Mounted on these end folding.

members are tuckers 106. Heating elements 107 are arranged beneath the latform and the ends folding members and these latter have their ends adjacent the elevator curved as shown best in Figure'3, at 108. Extending away from the platform 102 is thedelivery conveyor 109 provided with the adjustableside 110.

It is to be noted that each andall ofthe parts areadjustable to accommodate'loaves of different sizes. In the operation of the device'it will e seen by referring to the.

dia ammati'c'a figures 'that the first step in t e operation is the-delivery of the loaf on the elevator. The cams and eccentricsita are so arranged that at the time the loaf is delivered. in this position a sheet of paper has been fed forwardand cut 01L The elevator. then rises and the sides of this sheet and 80. Next the per just acted on by the folder 97 as seen in Figure 11. The carriage 78 then moves so that the (paper on the o posite side is folded ge of the plat orm 102 beneaththe loaf, continuation of this movement causing the tuckers 106-to fold this rem'aining side inward and at the same time the releasing cams 86 will act to free the folder. 80 from the loaf. As the loaf moves further the of the loaf brin curved surfaces 108 engage the bottom and top of the wrapper orpaper and fold that respectively ,up and down thus completing the wrapping; Continuation ofmovement the folded bottom and end seams OPPOSlte'thG heater which inelts the paraffin, usually employed ,in such paper, and causes the edges 'to stick together. From this point the loaf is pushed off to the deliveryv conveyor.-

Having thus described the invention what is claimed as new, is :m I

1 In a-bread wrapping machine,.'a wrapping paper holding and feeding mechanism, a loaf elevating mechamsm movable to bring a loaf into contact with the paper fed from the: first mentioned mechanism, a horizontally reciprocating aper folding and loaf moving device mova 1e to and from a position above the elevating mechanism, reciprocating mechanisms for foldingone side of thepaper under the loaf and for folding one side of each end inward, means to actuate said mechanisms in timed relation, -and stationary devices arranged to act on the paper as the loafmoving device moves away from above the elevating mechanism and arranged to successively fold the remaining side of each end inward on the loaf end and fold'the top and'bottom portions of the papercends over the side portions thereof.'-

' 2. In a bread wrapping machine, a wrapping paper holding and feeding mechanism, a loaf elevating mechanism,,movable to bring a loaf into contactwiththe paper fed from the first mentioned mechanism, a horizontally reciprocating vpaper folding and loaf moving device movable to and from a position above the elevati'ng mechanism, reciprocating mechanisms for folding one side-of the paper under the loaf and for folding one side of each end inward,'means to actuate said mechanisms in, timed relatipn, stationary devices arranged to act on the paper as t e loaf movingdevice moves ottom folder 97 advances 7 on the I 3. In a bread wrapplng machine, .amaln plunger through said opening, a carriage mounted,

away from above the elevating mechanism and arranged to successively fold the re-' maining side of each end inward on the loaf end and fold the top and bottom portions of the paper ends over the side portions thereof, and sealing means arranged to act onthe aper after the folding of the same oaf has been completed.

frame, a supplemental frame above said main frame, a platform on said main frame having an opening adjacent one end, a plunger reciprocably. mounted to pass through said opening, a carriage. mounted on the supplemental frame to reciprocate across saidopening, a folding member fixed to one side of the carriage and dependlng' therefrom, a second folding member pivoted at its upper edge 'to the other side of said carriage and depending therefrom, means to reciprocate the plunger, means to recipro cate the carriage in timed relation to the plunger, and'coacting elements on the sup plemental frame and second folding member arranged to swing the'second folding member into horizontal position upon movement of the carriage over the platform and away from the opening.

4. In a bread wrapping machine," a main frame, a supplemental frame above said main frame, a plat formon said main frame I having an openin adjacent one end, a reciproca ly mounted to pass on the su plemental frame to reciprocate across sai opening, a-folding member fixed to one side ,of the carriage and depending therefrom, a second folding member pivoted at its upper edge to the other side ofisaid carriage and depending therefrom, means to reciprocate the plunger, means to'reciprocate the carriage intimed relation to the plunger, arms projecting ;upwardfrom the second folding member, rollers on the upper end of said, arms, fixed cam members on the supplemental frame engaging said rollers to swing the second folding member into horizontal position upon movement of the carriage over the platform and awa from the opening, and spring means hol ing said rollers in engagement with said cams. a

5. In a bread wrapping machine, a main frame, a supplemental frame above said main frame, a platform on said main frame having an openin adjacent one end, a plunger reciproca ly mounted to pass through said opening, a carriage mounted on the supplemental frame to reciprocate across said opening, a folding member fixed plunger, arms projecting .upward from the platform havingan opening t through the loaf .to be wrapped may rise, --means to raise the loaf through said open-. ing, a bread holder above said platform and supplemental frame engaging said rollers to swing the second folding member into horizontal position upon movement .of the car-.

riage over the platform and away from. the opening, spring means holding said rollers in engagement with said cams, and stops on said carria e limiting the movement of the second fol mg jmember. toward the first.

6. In a machine of the'clasp1 described, a

. ada ted to move to and from position of thereof lover and away from-said opening, end tuckers mounted on said carriage and moving therewith, a bottom-folder slidably "mounted on "said carriage, and means to sai opening, a carriagemounte'd on said platform and reciprocating longitudinally move the. carriage and bottom folder in timed relation.

1 7. In :a machine of the class described, a

platform having an opening therein, guides extending longitudinally of the platform across and above. said opening, a carriage slidably mounted on said guides, folders mounted for lateral movement with re act to said carr1age,.means to hold said fol ers 1I1' laterally. adjusted relation, endtuckers mounted on'said folders, means to hold said end'tuckers in position'on-the folders, and means to reciprocate said carriage:

- 8. In a machine of the classdescribed, a

platform having an opening therein, guides extending longitudinally of the platform acrossand above said opening, a carriage slidably mounted .on said. guides, I folders mounted for lateral movement with respect to said carriage, means to hold said folders.-

in laterally'adjust'ed relation, end vtuckers ounted on said folders, guides extending longitudinally oflsaid carriage ands fixed thereon, a bottomfolder slidably mounted in said lastguides, "and means to reciprocate lationf 9. Ina machine of the class described, a

said carriage and bottom folder in timed're- I platform. having an opening therein, an ele- Tvator' for moving; a bread'.'loaf upward "through said opening, a frame mounted on said platform and extendin above. the same,

" ee ine a. pair ,ofguide rods extending lorRgitudinaL of the frame .in spaced relation above" the platform, a. carriage slidable on'said ide swig-folders adjustable longitudinal y of, said carriage, means to hold said folders in ly adjusted position, a fixed erein whereform, said. ward "andfolding member secured to one side .of saidcarria e and rigid therewith, a folding m'em ber' pivoted to the other side of the carriage and movable from vertical loaf engaging po- -sition to horizontal loaf freeing position, means to reciprocate said carriage and "means to move'the second mentioned folding member on its 'v ot. p

10. In a mac ine ofthe class described,

a platform having an openin therein, an

elevator for movinga bread oafupward through said opening, a frame mounted on said platform and extendin above the same, a pair ofv guide rods extending longitudinal.-

"1y of the frame in spaced relation above 1536 platform, acarriage'slidable on said rods, folders adjustable longitudina y of said. carriage, means to hold said folders in lon itudinall v adjusted position, a fixed fol ing mem er, secured to certain of said folders and-rigidtherewith, a folding memher! pivoted the remaining. bracket and movable from vertical' loaf engaging position to horizontal loaf freeing position, meansto reciprocate said. carnage and means to move the second mentioned folding;

member on its pivot, comprising arms projectingupward from. said foldin member, rollers'carried by said arms, and said frame engaging said rollers.

11. In a imachine of the class described, a'"

cams Qn platform having an opening therein, means to"m'ove,e. artlywrapped loaf longitudi .nallyof s'ai platform, a pair of guidemembers, brackets su porting said guide members and adjusta ly secured to said platform, said guide members being movable toward and from each other to accommodate loavesof varying lengths, means to hold said brackets in adjusted relation and trucker members mounted on said guide members and projecting-in the path of the partly as wrapped loaf.

- "12. In a machine of the class described, a;

platform having an opening therein, means tomove a partly wrapped loaf longitudinally\ of said platformfa pair. of guide members, brackets supporting said guide mem-;

bers and adjustably" secured to -said. lat? m each 1 other accommodate ide membersbegig movab e to loaves ofvarying lengths; means" tofhold' I said brackets in adjusted""relatiomtuckermembers mounted on said guide-members,

andprojecting in'the path of thepartly wrapped'loaf,the said guide members having their ends adjacent thetuckermembers curved to engage'thelower'and upper-parts of 'the' p'rojecting portion of-the wrapper on f t f fighereof I-alfin-mysignature;

RYWArEnsToNn 

